Colin, the Michigan boy who told his mom he had no friends, gets a birthday surprise on 'Good Morning America' on Friday, March 7, 2014. / Heidi Gutman/ABC

The Free Press staff made a Michigan boy a birthday card to show him that he's got lots of friends and supporters. Colin, of Richland, is celebrating his 11th birthday on Sunday. / Jessica J. Trevino/Detroit Free Pres

And later today, young Colin will visit the Florida theme park for the first time.

His mother, Jennifer, told the Free Press by phone Friday afternoon that the family is at LaGuardia Airport in New York City. Colin is wearing the red “I went viral on my birthday” T-shirt he was given on the “Good Morning America” set.

Until this morning, Colin had no idea that 2.1 million people from around the world have posted to a Facebook page his mother made for him, called Happy Birthday Colin, and also have sent letters, cards and packages to the post office box his mother set up in Richland, near Kalamazoo, for the lonely boy.

Colin has a disorder similar to autism, and has been picked on in school. He told his mother that he didn’t want a birthday party because he doesn’t have any friends to invite. To make his day special, she started the Facebook page that took off.

“Thank you to all the 2.1 million people who liked it,” Colin told the Free Press on Friday afternoon.

Originally, Jennifer planned to surprise Colin for his birthday, which is Sunday, with all the mail he’s gotten and news of the Facebook page. She had initially hoped to get a few dozen comments on the Happy Birthday Colin Facebook page, and maybe a handful of cards.

But instead, the family flew to New York on Thursday and appeared this morning on “Good Morning America” for the big reveal, complete with a cake and the “I went viral on my birthday” T-shirt. Jennifer has rented two storage units to hold all the mail and packages that have arrived for him and makes daily visits to the post office.

The family told Colin that he was going to appear on the show to test out some video games, but Robin Roberts revealed that wasn’t really the reason he was there.

Colin, surrounded by his parents and sister Ella, blew a whistle on air, and balloons dropped from the ceiling as the Rutgers marching band entered the room. That’s when co-anchor George Stephanopoulos announced that Colin’s family was going to Walt Disney World.

“I had no idea. I have a pretty wild imagination, but I did not even fathom that was going to happen,” his mom said on the show. Colin was all smiles.

Jennifer later told the Free Press that she never dreamed she’d get the overwhelming response to her simple plea for support for her son.

“It wasn’t as if either one of us wanted it to go viral,” she said. “Now he’s enjoying getting used to it.”

There’s still time to get in on the fun. Make a card for Colin and take a selfie with it. Send the photo to the Free Press at colin@freepress.com. We’ll make a photo gallery and video of our favorites to help him celebrate.